that will work in your favour but maxing out your first 60 day entry to 90 days will not look good to a keen Immigration Officer. If you max out your first entry then seek an agent to do your border bounce.
The Non-O only gives you a 90 day entry so just a few weeks to open a bank account and transfer the funds to allow them to season for 2 months for your first 12 month extension (unless your Embassy still does the income affidavit)